Roosenburg ArticleTitle Maternal condition and nest site choice: An alternative for the maintenance of environmental sex determination Am. Other work centers on a theoretical model the Charnov — Bull model[33] [34] predicted that selection should favour TSD over chromosome -based systems when "the developmental environment differentially influences male versus female fitness"; [2] this theoretical model was empirically validated thirty years later [2] but the generality of this hypothesis in reptiles is questioned.
Sign In See Subscription Options. Bowden F. Shine ArticleTitle Why is sex determined by nest temperature in many reptiles? Prevot-Julliard M.
Bibcode : PLoSO The turtles were incubated at temperatures that produce solely males, both sexes, and solely females. New Jersey: Prentice Hall, Namespaces Article Talk. Journal of Evolutionary Biology.
Views Read Edit View history. Salinger S. Categories : Herpetology Sex-determination systems. Adams Jones L.
Download references. In temperature-dependent sex determination, however, it is the environmental temperature during a critical period of embryonic development that determines whether an egg develops as male or female. Shine ArticleTitle Reconstructing an adaptionist scenario: what selective forces favour the evolution of viviparity in montane reptiles?
In this species, high incubation temperature during egg development reverses genotypic males ZZ into phenotypic females; so females can be ZZ or ZW, but males are always ZZ.